| 18.106.010 | Definitions. |
| 18.106.020 | Certificate or permit required--Photo identification -- Written warning, penalty--Trainee supervision required -- Medical gas piping installer endorsement--Penalty -- Notice of infraction. |
| 18.106.030 | Application for certificate of competency -- Medical gas piping installer endorsement -- Evidence required. |
| 18.106.040 | Examinations -- Eligibility requirements -- Determination. |
| 18.106.050 | Examinations -- Scope -- Results -- Retaking. |
| 18.106.070 | Certificates of competency, installer endorsement -- Issuance -- Renewal -- Rights of holder -- Training certificates -- Supervision -- Training, certified plumber. |
| 18.106.075 | Medical gas piping installer endorsement. |
| 18.106.080 | Persons engaged in plumbing business or trade on effective date. |
| 18.106.090 | Temporary permits. |
| 18.106.100 | Revocation of certificate of competency -- Grounds -- Procedure. |
| 18.106.110 | Advisory board of plumbers. |
| 18.106.125 | Fees. |
| 18.106.130 | Plumbing certificate fund. |
| 18.106.140 | Powers and duties of director. |
| 18.106.150 | Exemptions. |
| 18.106.155 | Reciprocity. |
| 18.106.170 | Violations -- Inspections -- Production of credentials. |
| 18.106.180 | Notice of infraction -- Issuance, service. |
| 18.106.190 | Notice -- Contents. |
| 18.106.200 | Notice -- Hearing -- Contest -- Notice of appeal. |
| 18.106.210 | Notice -- Determination infraction committed. |
| 18.106.220 | Notice -- Penalty payment -- Filing answer of protest -- Failure to respond or appear. |
| 18.106.230 | Notice -- Failure to respond -- Misdemeanor. |
| 18.106.240 | Representation by attorney -- Department represented by attorney general. |
| 18.106.250 | Infraction -- Cases -- Administrative Procedure Act -- Burden of proof -- Order -- Appeal. |
| 18.106.270 | Infraction -- Monetary penalties -- Rules. |
| 18.106.280 | Pilot project -- Enforcement of chapter -- Reimbursement fee. |
| 18.106.290 | Certificate or permit suspension -- Nonpayment or default on educational loan or scholarship. |
| 18.106.300 | Certificate suspension--Noncompliance with support order--Reissuance. |
| 18.106.310 | Backflow assembly testers -- Specialty plumber's certificate of competency. |
| 18.106.320 | Contractor's duties -- Records audit -- Department's rule-making authority -- Penalty. |